Closed loop power control with high dynamic range

Details Closed loop power control with high dynamic range Closed loop power control with high dynamic range

2006-12-12

2006-12-12

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including gain control means

C330S291000

Reexamination Certificate

active

07148749

ABSTRACT:
A method (500) and apparatus (300, 400, 601) facilitate closed loop transmit power control in a power control loop at and during a transition from one transmit power level to another transmit power level in a transmitter. The apparatus includes a reference path (326) configured to provide a reference signal (325) and a gain compensation signal (417), a detect path (327) configured to process, in accordance with the gain compensation signal, a detected signal corresponding to a power level to provide a gain compensated detected signal; and a power control path (328) configured to generate a power control value in accordance with the reference signal, the gain compensated detected signal, and a loop compensation factor associated with the gain compensation signal where the power control value is suitable for setting the power level for the transmission.

REFERENCES:
patent: 5150075 (1992-09-01), Heietala et al.
patent: 5278994 (1994-01-01), Black et al.
patent: 6057732 (2000-05-01), Morishita
patent: 6160449 (2000-12-01), Klomsdorf et al.
patent: 6417730 (2002-07-01), Segallis et al.
patent: 2004/0137852 (2004-07-01), Shi et al.
patent: 2004/0166885 (2004-08-01), Mohsen et al.

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